AD1893JSTZRL

Overview

The AD1893JSTZRL is a fully digital, stereo asynchronous sample rate converter (ASRC) from the SamplePort family. It converts input data rates between 8 kHz and 56 kHz to desired output rates with a ratio range of approximately 1:2 to 2:1. The device features a 44-lead LQFP package and operates on a single 2.7 V to 5.5 V supply. Key electrical specifications include a dynamic range of 96 dB and total harmonic distortion plus noise (THD+N) of -96 dB at 1 kHz. It utilizes an internal 16 MHz oscillator and supports serial interfaces for digital audio interfacing.

Feature Summary

• Fully digital stereo ASRC with automatic sample frequency sensing
• Rejects sample clock jitter with selectable slow/fast settling modes
• On-chip oscillator requiring only an external crystal
• Flexible four-wire serial interface with configurable data justification

Applications

• Consumer CD-R, DAT, DCC, MD and 8 mm Video Tape Recorders
• Digital Audio Communication/Network Systems
• Computer Multimedia Systems

Procurement Notes

Verify the specific suffix JSTZRL against the manufacturer's current ordering guide to confirm package type (LQFP) and reel configuration. Confirm that the component meets the required operational temperature range of 0°C to +70°C for commercial applications or -40°C to +85°C if extended range is needed, as specifications vary by grade.

Selection Notes

Select this component for low-cost, non-varispeed 16-bit audio applications requiring battery-powered operation due to its low power consumption. Ensure the system design accommodates the approximately 700 ms group delay. Verify that the input word width (4 to 16 bits) and output word width (24 bits) align with the downstream processing requirements.

Part Context

The AD1893 belongs to the Analog Devices SamplePort family, which includes related models like the AD1890 and AD1891. These devices share similar asynchronous conversion architectures but may differ in channel count, resolution, or interface options. The AD1893 specifically targets stereo 16-bit applications.

Replacement Considerations

Check for updated revisions within the AD1893 series or alternative SamplePort family members such as the AD1890 or AD1891 if pin compatibility or feature sets need adjustment. Verify that any substitute maintains the same 44-LQFP footprint and voltage supply requirements.